单词：crack 

名词

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  [1.n.crack] (同义词:[crack]  [cleft]  [crevice]  [fissure]  [scissure]  )
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  注释列句：a long narrow opening
• 上位词 -> [opening]  [space]  [amorphous_shape]  [shape]  [attribute]  [abstraction]  [entity] 
• 下位词 -> [chap]  [chink]  [crevasse]  [fatigue_crack]  [fault]  [rift]  [slit]  [split]  [vent] 
  派生词 -> [crack] 
  
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  [2.n.crack] (同义词:[gap]  [crack]  )
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  注释列句：a narrow opening; "he opened the window a crack"
• 上位词 -> [opening]  [artifact]  [whole]  [object]  [physical_entity]  [entity] 
• 下位词 -> [lacuna]  [spark_gap] 
  
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  [3.n.crack] (同义词:[crevice]  [cranny]  [crack]  [fissure]  [chap]  )
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  注释列句：a long narrow depression in a surface
• 上位词 -> [depression]  [concave_shape]  [solid]  [shape]  [attribute]  [abstraction]  [entity] 
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  [4.n.crack] (同义词:[crack]  [cracking]  [snap]  )
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  注释列句：a sudden sharp noise; "the crack of a whip"; "he heard the cracking of the ice"; "he can hear the snap of a twig"
• 上位词 -> [noise]  [sound]  [happening]  [event]  [psychological_feature]  [abstraction]  [entity] 
• 派生词 -> [crack] 
  
• 
  [5.n.crack] (同义词:[shot]  [crack]  )
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  注释列句：a chance to do something; "he wanted a shot at the champion"
• 上位词 -> [opportunity]  [possibility]  [being]  [state]  [attribute]  [abstraction]  [entity] 
• 所 有 -> [colloquialism] 
  方 言 -> [colloquialism] 
  
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  [6.n.crack] (同义词:[wisecrack]  [crack]  [sally]  [quip]  )
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  注释列句：witty remark
• 上位词 -> [remark]  [statement]  [message]  [communication]  [abstraction]  [entity] 
• 派生词 -> [crack]  [wisecrack] 
  
• 
  [7.n.crack] (同义词:[crack]  )
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  注释列句：a blemish resulting from a break without complete separation of the parts; "there was a crack in the mirror"
• 上位词 -> [blemish]  [appearance]  [quality]  [attribute]  [abstraction]  [entity] 
• 下位词 -> [craze] 
  
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  [8.n.crack] (同义词:[crack]  [crack_cocaine]  [tornado]  )
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  注释列句：a purified and potent form of cocaine that is smoked rather than snorted; highly addictive
• 上位词 -> [cocaine]  [hard_drug]  [narcotic]  [drug]  [agent]  [causal_agent]  [physical_entity]  [entity] 
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  [9.n.crack] (同义词:[crack]  [fling]  [go]  [pass]  [whirl]  [offer]  )
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  注释列句：a usually brief attempt; "he took a crack at it"; "I gave it a whirl"
• 上位词 -> [attempt]  [activity]  [act]  [event]  [psychological_feature]  [abstraction]  [entity] 
• 
  [10.n.crack] (同义词:[fracture]  [crack]  [cracking]  )
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  注释列句：the act of cracking something
• 上位词 -> [breakage]  [change_of_integrity]  [change]  [action]  [act]  [event]  [psychological_feature]  [abstraction]  [entity] 
• 派生词 -> [crack] 
  

动词

• 
  [1.v.crack] (同义词:[crack]  [check]  [break]  )
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  注释列句：become fractured; break or crack on the surface only; "The glass cracked when it was heated"
• 上位词 -> [change] 
• 下位词 -> [crack] 
  
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  [2.v.crack] (同义词:[crack]  )
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  注释列句：make a very sharp explosive sound; "His gun cracked"
• 上位词 -> [sound]  [cause_to_be_perceived] 
• 派生词 -> [cracker]  [cracking] 
  
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  [3.v.crack] (同义词:[snap]  [crack]  )
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  注释列句：make a sharp sound; "his fingers snapped"
• 上位词 -> [sound]  [cause_to_be_perceived] 
• 派生词 -> [cracker] 
  
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  [4.v.crack] (同义词:[crack]  )
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  注释列句：hit forcefully; deal a hard blow, making a cracking noise; "The teacher cracked him across the face with a ruler"
• 上位词 -> [hit]  [touch] 
• 派生词 -> [cracking] 
  
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  [5.v.crack] (同义词:[break_through]  [crack]  )
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  注释列句：pass through (a barrier); "Registrations cracked through the 30,000 mark in the county"
• 上位词 -> [pass]  [travel] 
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  [6.v.crack] (同义词:[crack]  )
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  注释列句：break partially but keep its integrity; "The glass cracked"
• 上位词 -> [crack]  [change] 
• 下位词 -> [chap]  [craze]  [alligator] 
  派生词 -> [crack] 
  
• 
  [7.v.crack] (同义词:[snap]  [crack]  )
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  注释列句：break suddenly and abruptly, as under tension; "The pipe snapped"
• 上位词 -> [break]  [change_integrity]  [change] 
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  [8.v.crack] (同义词:[crack]  )
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  注释列句：gain unauthorized access computers with malicious intentions; "she cracked my password"; "crack a safe"
• 上位词 -> [break_in]  [trespass]  [transgress]  [disrespect]  [relate]  [interact]  [act] 
• 派生词 -> [cracker] 
  
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  [9.v.crack] (同义词:[crack_up]  [crack]  [crock_up]  [break_up]  [collapse]  )
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  注释列句：suffer a nervous breakdown
• 上位词 -> [suffer]  [experience]  [undergo]  [change] 
• 派生词 -> [crack-up] 
  
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  [10.v.crack] (同义词:[crack]  )
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  注释列句：tell spontaneously; "crack a joke"
• 上位词 -> [tell]  [inform]  [communicate]  [interact]  [act] 
• 派生词 -> [crack] 
  
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  [11.v.crack] (同义词:[crack]  )
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  注释列句：cause to become cracked; "heat and light cracked the back of the leather chair"
• 上位词 -> [change] 
• 下位词 -> [check]  [fissure] 
  动词组 -> [break] 
  
• 
  [12.v.crack] (同义词:[crack]  )
• 
  注释列句：reduce (petroleum) to a simpler compound by cracking
• 上位词 -> [decompose]  [separate]  [change_integrity]  [change] 
• 原 因 -> [crack] 
  所 有 -> [chemistry] 
  种 类 -> [chemistry] 
  派生词 -> [cracking] 
  
• 
  [13.v.crack] (同义词:[crack]  )
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  注释列句：break into simpler molecules by means of heat; "The petroleum cracked"
• 上位词 -> [change] 
• 所 有 -> [chemistry] 
  种 类 -> [chemistry] 
  派生词 -> [cracking] 
  

形容词

• 
  [1.a.crack] (同义词:[ace]  [A-one]  [crack]  [first-rate]  [super]  [tiptop]  [topnotch]  [top-notch]  [tops]  )
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  注释列句：of the highest quality; "an ace reporter"; "a crack shot"; "a first-rate golfer"; "a super party"; "played top-notch tennis"; "an athlete in tiptop condition"; "she is absolutely tops"
• 近义词 -> [superior] 
  所 有 -> [colloquialism] 
  方 言 -> [colloquialism]